A particle travels along the x-axis such that its velocity is given by v(t)=t1.1−2−5cos(3t). What is the acceleration of the particle at time t=1 ? You may use a calculator and round your answer to the nearest thousandth.Answer:
Q. A particle travels along the x-axis such that its velocity is given by v(t)=t1.1−2−5cos(3t). What is the acceleration of the particle at time t=1 ? You may use a calculator and round your answer to the nearest thousandth.Answer:
Differentiate Velocity Function: To find the acceleration of the particle at time t=1, we need to differentiate the velocity function v(t) with respect to time t to get the acceleration function a(t). The velocity function is v(t)=t1.1−2−5cos(3t).
Combine Derivatives: Differentiate each term of the velocity function separately. The derivative of t1.1 with respect to t is 1.1⋅t0.1. The derivative of a constant is 0, so the derivative of −2 is 0. The derivative of −5cos(3t) with respect to t is 15sin(3t) because the derivative of cos(u) is t0 and we apply the chain rule with an inner function of t1, which gives us an additional factor of t2.
Evaluate Acceleration at t=1: Combine the derivatives to get the acceleration function a(t) which is a(t)=1.1⋅t0.1+15sin(3t).
Calculate a(1): Evaluate the acceleration function at t=1 to find the acceleration at that time. So, a(1)=1.1×10.1+15sin(3×1).
Perform Calculation: Calculate the value of a(1). Since 1 to any power is 1, we have 1.1×10.1=1.1. The sine of 3 radians can be calculated using a calculator. sin(3) is approximately 0.1411. So, 15sin(3) is approximately 15×0.1411.
Add Values: Perform the calculation: a(1)=1.1+15×0.1411. Using a calculator, we find that 15×0.1411 is approximately 2.1165. So, a(1)=1.1+2.1165.
Round Final Answer: Add the two values to get the final acceleration at t=1. a(1)=1.1+2.1165=3.2165.
Round Final Answer: Add the two values to get the final acceleration at t=1. a(1)=1.1+2.1165=3.2165.Round the final answer to the nearest thousandth as instructed. The rounded value of a(1) is 3.217.
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